On Sun, 03 Nov 2013 00:18:09 -0700
Michael Dexter edi...@callfortesting.org wrote:
Hello all from the FreeBSD 20th Anniversary Party in San Francisco,
I have published a bhyve virtual machine provisioning and management
framework to simplify the building and deploying of bhyve VMs during
the run-up to the FreeBSD 10.0 release. As you may know, bhyve is
rapidly finalizing for release in FreeBSD 10.0 and most features are
finally becoming stable enough to document in a canonical manner.
These scripts demonstrate the many opportunities for customization of
bhyve deployments and will embrace features like OpenBSD and Linux
support as soon as key components like the userland grub* arrive
(currently in final testing). It will also demonstrate the use of pf
to allow bhyve networking on wireless interfaces.
It can be downloaded from:
http://bhyve.org/bhyve-script.tar
It works like a rc script but does not comply with the FreeBSD way. I
am working with several developers to determine to what degree it
should be compatible with existing frameworks like ezjail.
./vm0 will give the usage:
usage (start|stop|load|boot|destroy|restart|list|debug
mount|umount|jail|format|fetch|install|provision|wipe)
Some routines like provision include steps like fetch (distribution
sets), format (disk images or volumes) and install them.
The jail routine demonstrates how a virtual machine can be launched
using the jail(8) command, because we can, given that bhyve FreeBSD
VMs are simply instances of FreeBSD with the ABI limitations of
different releases. bhyve will support any vision of FreeBSD with
VirtIO, specifically FreeBSD 8.4 and 8-STABLE, 9.2 and 9-STABLE, and
any recent version of 10 or 11.
Detailed instructions are included in the vm0 script and it is
designed to simply be copied to vm1, vm2 etc. with easily-configured
global variables.
While tmux(1) is optional and supports both captive and detached
execution, a script is included to list and attach to running
VMs/sessions. A script is also provided for the easy duplication of
VMs and I have tested this with up to 15 X 16 vCPU instances though
far more should work without issue.
Please throw everything you can at bhyve to expose any remaining flaws
prior to the FreeBSD 10.0 release.
All the best,
Michael Dexter
Sounds similar to how I ran my VMs for a while (well, I ln -s from the
original VM script instead of copying, so it's easier to update all at
once). I finally changed the script to use profiles a few days ago,
since it seemed much cleaner in general and better for automatic control
and also complies to the FreeBSD way. I submitted a PR for
sysutils/bhyve-rc literally hours before you released vm0
(http://www.freebsd.org/cgi/query-pr.cgi?pr=183604), great timing ;)
It's only good for one use case, but does that very well.
I like the idea of the script using the general structure of ezjail. I
would also suggest to split this it two scripts, one rc script, that
only provides non-destructive operations like
(start|stop|restart|rcvar) and one called vm-admin which provides the
provisions functions on top, e.g.
service vm start vm0 # ok
vm-admin start vm0 # ok
service vm format vm0 ... # not ok
vm-admin format vm0 ... # ok
--
Michael Gmelin
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